Gadgetory

electromagnetic interference or EMI for short is a term that describes any external effects that disturb electrical circuits by way of induction or radiation and while that definition may have been a bit boring for some rest assured that the EMP blasts from action and sci-fi films are coming later so stay tuned because graphics of extreme EMI generate angeling nuclear explosions and like maybe even some fighter jets are coming for now let's return to the everyday world with examples you'll be much more likely to have encountered when you and your buddy could accidentally control each other's RC cars in a race that buzzing humming sound that you can hear from a speaker if a nearby cell phone rings or that bizarre thing where one radio station can lead right into another so you're essentially listening to a Mormon creature and hardcore Punjabi rap at the same time now these types of interferes could generally be classified as narrow band since the trouble stems from to intended broadcast transmissions that have essentially become entangled with each other and while they're certainly annoying the good news is that they are easily dealt with by switching between alternate broadcast channels breaker breaker one-niner this is line is coming in with a big ten-four there sir this channel is for police use only ah anyway or by shielding conductive wiring that might turn into an accidental antenna the second main type of interferes would be broadband and these kind of suck things like lightning strikes and high-voltage power lines are a little tougher to deal with since the EMI that they spew out is from copious amounts of energy and covers many frequencies something that a controlled and intentional signal shouldn't do thanks to the regulatory bodies more on that later the good news here is that even broad interferes like lightning won't interfere with everything and as long as you're sensitive junk isn't too close to strike the Mexico only lasts as long as the storm so then what is it lioness that we're all worried about exactly EMI doesn't sound too bad and yeah actually naturally it's not but for every humanity advancing invention from some like way heavy dude there's a countermeasure from some butthole to junk it up jammers can block communications or under the radar Road asparagus how to make a video here can block communications or even radar by talking over all of the intentional signals and to deliver on the nuclear explosions I promised at the top ala pause here while they throw those in real quick the electromagnetic pulse which accompanies one of these behemoths can actually be as devastating as the blast itself instantly frying sensitive electronics crippling the communications and responsibilities of those affected some had even theorized that it would only take a couple dozen or so these things detonated in the atmosphere to essentially wipe out all of the world's power sources including batteries bomber so that settles it then right Linus nothing is safe and we should go back to living scantily clad in the forest right wrong well mostly wrong anyway you see michael faraday certified heavy dude brought us faraday cages or shields devices that protect their contents from electrical disturbances by channeling them around the exterior in other words they bounce electromagnetic wave activity off them and while these devices sound kind of complex really they're just a metal or mesh container you know like the ones on the door of your microwave and the ones that we already ship batteries back and forth in now so you see as long as we continue to make sure that we don't overload wireless channels bandwidth like we did during the release of the first iPhone be sure to place power sources away from high-traffic areas and keep potential supervillains in check through use of sexy British intelligence agents everything will be just fine that is unless of course an unpredictable solar flare strikes us without warning speaking of unpredictable solar flares actually nothing to do with those at all but they may make you appear to be brighter as well the service that I'm talking about is of course lynda.com with a lynda.com membership you can watch and learn from top experts who are passionate about teaching whether it's like digital photography or video editing two things that we're pretty passionate here at - 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